Modify `weave run` to use container name as fqdn
Modify `weave run` to use container name as fqdn

When run is invoked with `--with-dns` and a container name but no
hostname, synthesise a fully qualified hostname from the container name
and the weaveDNS domain and supply that as a hostname for the container.

cgvarela/weave,squaremo/weave,ycaihua/weave,ycaihua/weave,narry/weave,aaam/weave,2opremio/weave,dpw/weave,ycaihua/weave,achanda/weave,paulbellamy/weave,BWITS/weave,2opremio/weave,awanke/weave,BWITS/weave,OnePaaS/weave,achanda/weave,tomwilkie/weave,BWITS/weave,n054/weave,awh/weave,n054/weave,beni55/weave,BWITS/weave,cgvarela/weave,OnePaaS/weave,philipz/weave,narry/weave,philipz/weave,rade/weave,rade/weave,kidaa/weave,awanke/weave,squaremo/weave,beni55/weave,squaremo/weave,narry/weave,paladin74/weave,awanke/weave,rade/weave,2opremio/weave,weaveworks/weave,aaam/weave,dpw/weave,achanda/weave,awanke/weave,errordeveloper/weave,awh/weave,kidaa/weave,squaremo/weave,tomwilkie/weave,bboreham/weave,aaam/weave,paladin74/weave,awh/weave,aaam/weave,OnePaaS/weave,BWITS/weave,kidaa/weave,dpw/weave,kidaa/weave,paladin74/weave,n054/weave,paulbellamy/weave,2opremio/weave,narry/weave,cgvarela/weave,ycaihua/weave,errordeveloper/weave,beni55/weave,bboreham/weave,achanda/weave,errordeveloper/weave,bboreham/weave,ycaihua/weave,weaveworks/weave,paladin74/weave,cgvarela/weave,weaveworks/weave,paulbellamy/weave,weaveworks/weave,rade/weave,cgvarela/weave,narry/weave,squaremo/weave,philipz/weave,errordeveloper/weave,awh/weave,n054/weave,philipz/weave,2opremio/weave,bboreham/weave,aaam/weave,paulbellamy/weave,philipz/weave,tomwilkie/weave,OnePaaS/weave,awh/weave,dpw/weave,paladin74/weave,achanda/weave,beni55/weave,tomwilkie/weave,tomwilkie/weave,bboreham/weave,n054/weave,beni55/weave,kidaa/weave,rade/weave,OnePaaS/weave,dpw/weave,errordeveloper/weave,awanke/weave